Device and method relating to protection of an object...

H - Electricity – 02 – H

Patent

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Details

H02H 9/02 (2006.01) H01F 3/10 (2006.01) H01F 3/14 (2006.01) H01F 27/28 (2006.01) H01F 27/32 (2006.01) H01F 27/34 (2006.01) H01F 29/14 (2006.01) H02H 3/02 (2006.01)

Patent

CA 2275619

This invention is related to a device and a method for protection, in an electric power plant, of an object (1) against overcurrents from a network (3) or another equipment included in the high voltage plant, the device comprising a switching device (4) in a line (2) between the object and the network/equipment. The line (2) between the object and the network/equipment is connected to an arrangement (5) reducing overcurrents towards the object (1), said arrangement (5) being activatable for overcurrent reduction with the assistance of an arrangement (11-13) detecting overcurrent conditions within a time period substantially shorter than the breaktime of the switching device (4).

Cette invention a trait à un dispositif ainsi qu'au procédé correspondant, aux fins de la protection d'un organe (1), dans une centrale électrique, contre les surintensités provenant d'un réseau ou d'un autre équipement existant dans l'installation haute tension. Ce dispositif comporte un mécanisme de commutation (4) sur une ligne (2) entre l'organe et le réseau/équipement. La ligne (2) existant entre l'organe et le réseau/équipement est connectée à un dispositif (5) réduisant les surintensités dans la direction de l'organe (1), ce dispositif pouvant être rendu actif aux fins de cette réduction grâce à un autre dispositif (11-13) détectant des conditions de surintensité en un laps de temps sensiblement plus court que la durée de coupure du mécanisme de commutation (4).

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